[Scst-devel] initiator logs in repeatedly

[Stephan B. <ste...@jv...>]

Hi,

I am setting up an ASM backend storage using scst to provide a number of 
LUNs via one iscsi target on each of my two storage nodes.
Since I am (as of yet) lacking my new 10GbE network gear, I thought I'd 
connect my ASM nodes piggy-back to my scst hosts, using 10GbE interfaces.

So I have configured networking like this:

scst host A: eth5 192.168.10.1, eth7 192.168.11.1
scst host B: eth5 192.168.12.1, eth7 192.168.13.1

asm host A: eth5 192.168.10.2, eth6 192.168.11.2
asm host B: eth5 192.168.12.2, eth6 192.168.13.2

So, basically asm A eth5 is connected piggy-back to scst A eth5 and asm 
A eth6 to scst A eth7, while asm B eth5 is connected to scst B eth5 and 
asm B eth6 is connected to scst B eth7.

On each scst host there is one target which serves a couple of LUNs to 
either asm A and B. What sometimes happens is, that when asm A logs in 
into the target and then asm B logs in into the same target, I am 
getting these entries in the messages log:

Aug 18 11:22:50 btierasm01 iscsid: connection11:0 is operational after 
recovery (1 attempts)
Aug 18 11:22:51 btierasm01 kernel: connection11:0: detected conn error 
(1020)
Aug 18 11:22:51 btierasm01 iscsid: Kernel reported iSCSI connection 11:0 
error (1020 - ISCSI_ERR_TCP_CONN_CLOSE: TCP connection closed) state (3)
Aug 18 11:22:51 btierasm01 iscsid: connection11:0 is operational after 
recovery (1 attempts)
Aug 18 11:22:52 btierasm01 kernel: connection11:0: detected conn error 
(1020)
Aug 18 11:22:52 btierasm01 iscsid: Kernel reported iSCSI connection 11:0 
error (1020 - ISCSI_ERR_TCP_CONN_CLOSE: TCP connection closed) state (3)

Could I prevent this by creating two distinct targets on each scst host 
and having each target be resticted by the allowed_portal attribute?

Thanks,
Stephan

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